DE2620417A1 - DEVICE FOR APPLYING DOTS OF COLOR - Google Patents

Description

Patent attorneys

Dr. O. Loesenheck

DipUng. Siracke 2620417

Dipl.-Ing. Loesenbeck O

Bielefeld, Herforder Strafje 17

9/17

Mr. Mathias Mitter, Falkenstr. 57, 4815 Schloß Holte

Device for applying colored dots

The invention relates to a device for applying Color points on a flat structure resting on a working plane, preferably a web of material.

Such devices for applying colored dots are known per se. In these devices there is a so-called Arranged working bar, which extends across the web and computer-controlled spray nozzles on the underside of the ssiner carries so that any pattern can be sprayed onto the web, depending on the opening and closing of the individual nozzles can be changed.

The disadvantage of such a device is that a very large computer is required to control the nozzles, so that the machine is relatively expensive to manufacture and purchase, apart from the fact that it is also susceptible to failure grows with the size of the control unit.

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Furthermore, the applicant himself has already proposed such a Working beams with computer-controlled needles or rams to be provided in order to ensure an exact application of the pattern instead of the imprecise application of a spray of the material web through nozzles. Here, too, there is a difficulty in the fact that a relatively large computer is necessary to control the ram is.

The present invention is therefore based on the object to create a device in which the control unit can be kept relatively small and yet the advantages a single point application with its diverse possibilities of the design.

The invention consists in that a movable printing block is arranged above the working plane, in which ink application means are provided for the selective application of the ink the surface structure, the printing block being made smaller, than the area to be provided with colored dots and provided with control means for the constant change of its color dot order and the printing block is coupled with movement means for step-by-step movement over the working plane in the longitudinal and / or transverse direction.

This has the main advantage that the relatively The small printing block is only "a fraction of the size of the total working width over the printing area Area can be controlled away, either for example in the transverse direction in small steps and in the longitudinal direction of the Material web in large steps or e.g. in the longitudinal direction of the material web in single steps of 1 mm and in the transverse direction in large steps that correspond to the width of the print head. By this controlling the printing block on the to be printed

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Area "with simultaneous control of the nozzles or The ram to achieve the selective order is proportionate low technical means a multifaceted vulnerable Machine created, with which "any design can be applied.

In the drawings, various exemplary embodiments of the subject matter of the invention are shown.

1 shows a device in a diagram,

2 shows the device in side view, partially schematized,

Fig. 3 the writing device in the scheme,

Fig. 4- a further embodiment in the diagram,

Fig. 5 is the side view of the embodiment of Fig. 4- in the scheme,

6 shows a further embodiment of the device in the diagram,

7 shows a needle arrangement and suspension of a printing block in cross section, cut along the line VII - VII of Fig. 6,

8 shows a step-by-step diagram of the device,

9 shows the transverse control of the printing piece in section,

FIG. 10 shows a section along the line X-X in FIG. 9

On a machine frame 1, which is the case with the exemplary embodiments consists of two simple stands Io, a printing unit carriage 2 is movably mounted. A web 3 is the device supplied, wherein the supply means of the web of material are indifferent. It is also possible to use any material instead of the material line Flat structures, plates, blanks and the like of the machine

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to feed. In the following, the exemplary embodiment run out of a web.

The web 3 rests on an endlessly circulating printing blanket 4-, which is guided over rollers 4o, 41 (FIG. 2) and which is provided with a step drive 5. This will be described later.

The printing unit carriage 2 is between the uprights Io of the machine frame movable and consists of two side shields 2o, the are connected by a cross member 12o. The illustrated exemplary embodiments are each a double T-beam. The side shields 2o and the cross member 12o form the Printing unit carriage that rests on rollers 22o, two rollers 22o being arranged on each side. The one on the inside surface the side shields 2o arranged rollers 22o are supported on lever-like running rails 11, which are in the hinge points111 one of the stands Io are hinged and extend from one stand to the other, while their free end is up place a lifting device 6; in the illustrated embodiment, example on an eccentric 6o. Through this lifting device 6 the entire carriage 2 can be raised and lowered.

The printing unit carriage 2 is moved by a cylinder 21 which engages a cross member 121 extending from a side plate extends to the other side plate 2o and on both side plates is attached. The cross member 121 is connected to the piston rod 221 of the pressure cylinder 21, which in the usual Way is trained. It can be a pneumatic or Act hydraulic cylinders. If the piston rod 221 pushes forward, the carriage moves in the direction of arrow A in its so-called Starting position. A step mechanism 7 then moves a gear wheel 7o, which meshes in a rack 17o, which extends from one machine frame stand Io to the other, with the step mechanism 7 cL the entire printing unit carriage is transported 2 step by step in the direction of arrow B, while the print

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wear through the actual printing unit 8 takes place. The printing unit hangs on the cross member 12o so it can be displaced and thus transversely to the flow of goods direction adjustable on printing unit viagen 2.

If the printing unit carriage with the locked printing unit 8 has ended its movement in the direction of arrow E, the lifting device 6 is actuated and the cylinder 21 pushes the carriage back into the starting position via the piston rod 221.

The lifting device 6 consists of two eccentrics 6o arranged to the right and left of the stand Io, both of which are on one common axis 16o are attached. One of the eccentrics is connected to a pressure cylinder 61 via its piston rod 161, the piston rod 161 articulatedly engaging a lever 62 which moves the axis 16o of the eccentrics. Press thereby the eccentrics 6o to the right and left of the stand Io each raise one of the running rails 11 and thus lift the entire printing unit carriage 2 out of its forward transport drive, i.e. the gearwheel is lifted out of the rack 17o. This decoupling means that the printing unit carriage 2 is pushed back by the cylinder 21 possible.

The step mechanism 7 consists of a pressure cylinder 71 »the over its piston rod 171 moves a pawl 271, which engages in a ratchet wheel 72, the pawl 271 by a handlebar 172 is performed. Gears 73 and 173 then give the translation for moving a Maltese cross 7 ^> on its axis 174- on the opposite side of the side plate 2o the already mentioned gear 7o is seated, which is through the toothing with the rack 17o forces the step-by-step forward movement of the printing unit carriage 2 with the printing unit 8. The size of the For example, steps can be 1 mm.

The impulse for the cylinder 71 is given by the printing unit 8.

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The Maltese cross 74- is a pulse counter 75 assigned. Of the Print head 8 is connected to an Ooicputeinrichtung C, which serves as a control unit and can be set up as required. the Lines C-. are indicated in the drawing ntir. The positioning of the computer C can be done arbitrarily. It can be an ivasuenanordming next to the device.

After the number of steps of the printing unit 2 and thus also of the printing unit 8 of assumed ^ oo steps, for example The printing carriage career becomes 5oo mm, namely the running rails 11 are raised above the cylinder 61, the printing unit carriage 2 comes, as already mentioned, from the rack engagement and the entire carriage is driven by the cylinder 21 into the The starting position is pushed, the running rails 11 are lowered again via the cylinder 61 and the printing unit carriage 2 is back in gear rack engagement.

In the meantime, the actual printing unit 8 with the printing block is moved within the printing unit carriage 2, and although transversely to the longitudinal direction of the web in the axial direction in relation to the cross member 12o. Does the printing block have about 8o 5oo mm width, the shift takes place exactly by this width, namely also by 5oo mm. After this postponement there is a netier step-by-step drive via the cylinder in the direction of the arrow B.

The printing block 8o is held by a carrier 81 which, by means of a hat thread having part 181, engages over a spindle 28 which is located inside the cross member 12o and extends from side plate 2o to side plate 2o and is driven by a gear motor 128 ₀ The gear motor 128 rotates the spindle 28 and the printing block 8o moves in the direction of arrow D. The printing unit 8 moves by a step which corresponds approximately to its width. It only needs to be approached the approximately new pressure position. The point is controlled by a limit switch 82 located on the carrier 81. The cams 182 for actuating the limit switches

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switches 82 are mounted 3m cross member 12o of the printing unit carriage 2. The printing unit 8 is thus brought into the approximate working position. An exact position of the pressure block 80 is achieved by a locking cylinder 83, the piston rod 185 is designed as a mandrel and engages in locking rings 84. Instead of a Rasfczylinders 83 there is the possibility of a Apply magnets 283 (see Fig. 4).

9 and 10 show the more precise design of this locking mechanism shown. Here is; auca. apparent that the U-shaped carrier 31, which carries the printing block 80, on the cross member 12o is guided by rollers 85, which the cross member 12o above and attack at the bottom, while the rollers 185 attacking the side walls of the cross member 12o provide the transverse guide.

So that the mandrel 183 of the locking cylinder 83 can precisely engage in the locking rings 84 and, through its conical end, the printing unit 8 and thus also the printing block 80 can give its exact position without causing difficulties with regard to the spindle division between the nut thread giving part and the spindle 28, then in the illustrated embodiment of FIGS. 9 and 10 the nut thread-giving part 181 embedded between springs 281, which are supported on the right and left against abutments 381 attached to the carrier 81. The nut thread having part 181 leans against the cross member 12o and is thus secured against rotation. The wearer swims with it 81 and thus also the pressure block 80 between the springs 281 (see FIGS. 9 and 10). Has the printing unit 8 and thus also the When the printing block 80 on the cross member 12o or the spindle 28 reaches the end position to be printed, the gear motor becomes 128 and thus also the spindle 28 is switched to the opposite direction of rotation and the printing block 80 or the entire printing unit 8 moves back completely to the original starting position and now the time has come, the printing blanket 4 and thus advance the web 3 to a new

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Piece of web or goods attached, each in small steps to print forwards, to run backwards, laterally offset again to be printed in small steps, etc. Possibilities of the step sequence are described later.

The step drive of the printing blanket 4 is denoted by 5 in the drawings (see FIG. 2). A pressure cylinder 5 ° is provided here, whose piston rod 15o takes a lever 51 with it Pawl 52 which engages a ratchet wheel 53. The axis 153 of the ratchet wheel 53 carries the pivot point of the one hand Lever 51 and on the other hand a gear 54, which has further gears 154 and 254 drive the roller 41 for the printing blanket 4 gives. The step-by-step drive of the printing blanket 4 with the printed product lying on it, for example a web of material, takes place at a printing block of about 5oo mm, with also 500 m travel of the printing block, also by, for example, 500 mm. If that privilege the goods or the material web 3 has taken place, the cylinder 71 begins its work again. The step drive of the printing blanket can, for example, also be designed as shown in Fig. 3 as a possibility the execution of a step drive for the printing unit carriage 2 is shown.

The printing block can work with nozzles that are optionally opened and closed by computers. In Fig. 7 is an embodiment with plungers or needles is shown. For this purpose, the motor 274, which drives the Maltese cross 7 ^, A belt drive is carried along, consisting of pulleys 9o, 190 and belt 29o and an eccentric rod 91 running across the printing unit carriage 2 · This eccentric rod carries ball-bearing mounted Exenterll91, which also have ball-bearing Bearing stones 92 are arranged. The jewels 92 are in Portal supports 93 arranged, in a recess 193 of the same. The portal supports 93 are via vertical slide supports 94 is connected to the printing block 80, in the interior of which ink chambers ISo are arranged, which supply needles or plungers 28o with ink. Any desired, point-by-point working paint application system can be used, which may be axially movably mounted Needles take care of themselves from the I80 paint chambers

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. ! ΊΑ ™ ^ '"put in the" material line or in aas zu de Katerial v; ira cie color delivered to the goods.

The mode of operation is as follows: By turning the eccentric rod from Ilotox "274, the eccentrics 191 are taken along and the distance between the in this exemplary embodiment is changed to the upper plate> 7o of the pressure block lo, whereby the pressure GOCi: co in the; ange-Ebeneij Pfeilricnbunjen E is moved, whereby cue '"die! rebukes or otössel 28o in fiicxitun ^: on the goods beweib v. ^; ground and back. The printing block forms with vertical sliding supports 9 ^ and the c] uerlauxeüdeL porfcal carriers 95: -; Unit that rests on the Exentsm 192. The sliding guides _f -: en 4-cl of the ϊΐα _ώ 6Γ3 el can, as shown, be provided with yhl bearings .

In Fig. 6 the same embodiment is shown again, but instead of a belt drive 9 a special one Kotor 95 "· ί * Ε! Drive of the Exentersbange 91 is arranged. Here If the Sxenu er rod 91 is not guided through the whole machine, but is only located in the area of the printing works Viagens 2. In this embodiment, needles are not used either, but i; iit nozzles. These nozzles are 4-c-o in the Drawing referred to.

In]? Ig. 3 is a further embodiment of the step mechanism 7 shown. The holding cross 7 ^ with the Maltese cross wheel 374- is arranged in the same way as in the embodiment of FIG 2, however, the drive does not take place via the pawl and ratchet wheel 72, but from a geared brake motor 76. Not only the step mechanism 7 can be designed in this way, sondeiTj ave the stepper drive ρ for the step-by-step forward movement the printing blanket 4- with the goods 3

In the embodiment of Figs. 4 and 5, however, the Öchritc-

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BATH ORIGINAL

Werk 7 designed differently, namely as a magnetic stepping gear. The ratchet wheel 77 with the armature pendulum 177 is influenced by two magnets 277, which are switched on alternately and that Move armature pendulum 177 so that the ratchet wheel 77 the gear wheel 7o alternately released and locked. This will move the gear gradually. The printing unit carriage 2 is thereby moved that the cylinder 21 pulls constantly and the locking wheel 77 acts as a step lock. In this embodiment, also only the rack 17o raised and lowered by the eccentric 6o. The printing unit carriage 2 rests on fixed running rails 11.

In Fig. 8 the sequence of movements of the device is shown, and strongly schematized?

The printing unit carriage 2 is first advanced in the direction of arrow F and moves from the position shown in solid lines to the position shown in dashed lines, whereby the printing block So is taken along. The advance is done in small and smallest steps, so that a selective application of the color is possible, for example, that the needles or plungers 28o, can be switched off and on by the computer C, for example via magnets 58o. This is then done in the direction of arrow G a pushing back of the printing unit carriage 2 and thus of the printing block So, through a closed movement and not gradually. Then there is a lateral offset only of the printing block 8o in the direction of arrow H by its width and a renewed step-by-step procedure of the printing unit carriage 2 with the printing block 8o in the direction of the arrow F-,. This game repeats itself, the Printing unit carriage 2 with printing block 8o goes back in the direction of arrow G-, in one go and the printing block 8o alone, of course with its associated printing unit is laterally offset in the direction of the arrow H-,. These steps are carried out at regular intervals Game until the printing unit 8 is pushed back with the printing block 8o in the direction of the arrow Gg with the printing unit carriage 2, there after there is a complete left-to-right movement of the printing unit 3 with the printing block So in the direction of the arrow J. Then

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"or during the period of the full right-hand Offset in the direction of the arrow J, the material web is transported forward or the printed goods by the stepper drive 5 · The total play starts all over again. It is also possible, instead of moving in the direction of arrow J, to also use the return movement Let the printing block take place in the sequence of arrows F, G, H. There is thus the possibility of the even To run over the goods by the printing block 80 in different steps and sequence of steps than shown in FIG. 8. So For example, the printing block 80 can also be moved completely in very small steps from right to left in the arrow directions H are then lifted and, for example, are driven back again in small steps, with in between the goods are advanced. However, the example shown in FIG. 8 is advantageous in order to ensure that the entire product is really uniform to be able to print, especially if the complete return movement in the direction of arrow J is still omitted and in steps H also moved back.

The type of computer used to control all movements is irrelevant. The computer also takes that The impulses of the respective limit switches for the lateral movements of the printing unit. These limit switches are shown in FIGS. 1 and 4 denoted by 86 in the drawing. The limit switches 86 are used to change the direction of rotation of the gear motor 128, which is directly from the limit switches, but the computer must register the return movement of the printing unit. Also in the Computer recorded the respective circuit of the limit switch 82 for triggering the locking of the printing unit. This is necessary to give the respective impulses from the computer, for example to initiate the aforementioned 5oo mm steps for the forward movement of the printing unit 8. After the completion of the smallest steps, the pulse counter 75 sets the Drive out of operation and the printing unit 8 is pushed back by the cylinder 21, for example. Every movement of the printing unit 8 is dependent on the stepper drive and must also be controlled from here, with the computer both the thread movement as well as the movement of the printing unit 8 should be monitored.

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Claims (1)

Claims l.Worricntung for the application of colored dots on one on one \ / Flat structure resting on the working plane, preferably one Material web, characterized in that a movably mounted printing block above the working plane. (So) is arranged, in which the paint application means (2So, 4-8o) are provided for the point-like application of the paint to the surface structure, the Di- ¹ UCkS-GOCiT. (80) is designed to be smaller than the area to be provided with colored dots and is provided with sleeves C to continuously change its color dot order υηα the printing block (So) is coupled with evidence dung stone for gradual movement over the working level in the longitudinal and / or transverse direction. 2. Apparatus according to claim 1, characterized in that the printing block (80) is arranged hanging on a cross member (I2o) is on which it can be moved step by step and can be locked in its position and is the work surface at a distance from it spanning crossbeams (12o), in turn, can be moved stepwise transversely to its axial direction is stored in the machine frame (l). 5. yorrichtur.?··: according to claim 1 and 2, characterized in that that the cross member (12o) with side shields (2o) forms a printing unit (2), which is the work surface in Crossing and driving over the machine frame in the machine frame is stored, i ^ obei the printing unit carriage (2) on the it in turn carries veri'ahrbaren printing unit (8) with printing block (80). 4. Apparatus according to claim 1 and 3 _? characterized in that in the machine frame (l) there is a goods-drenching sports facility, preferably a printing blanket (4), on which the .Druckgood (3) can be fed to the printing unit (8), the ORIGINAL INSPECTED Druckdeeke (4) with; a stepper drive (5) is provided. 5. Device according to claims 1 and 2, characterized in that daJ3 the printing unit carriage (2) on rollers (22o) and rails (11) is continuously provided with a step mechanism (7) which can be disengaged. 6. Apparatus according to claim 1 and 5, characterized marked-t, that the printing unit carriage (2) is driving on Hollen (22o) on the right and to the left of the machine frame (l) is mounted on running rails (11), which in turn act as pivotable lever arms are designed and with a controllable lifting device (6o, 6l) ^ / can be seen, zui "decoupling of the step mechanism (7) · 7. Device according to claim 1, J and p, characterized in that that the Druckwerkswsgen (2) with a return device (21, 121) is provided. -S. Device according to claim 1 and 7? characterized, that the Kückfübxeinrichtung consists of a pressure cylinder (21), who attacks a transverse verse (121), which in turn with the. Side shields (2o) of the printing unit (2) connected and which the return device (21, 121) in return? Step mechanism (7) can be used. 9. Device according to claim 1 and 6, characterized in that that the Huoeinrichcung (6) aur movement of the rails (11) or the racks (I7o) for transporting the printing unit (2) from a pressure cylinder (61), the piston rod (161) of which engages an eccentric axis (16o) in an articulated manner, each running rail (11) or each cream bar (I7o) a Eccentric (So) assigned isc. Io. Device according to claims 1 and 4, characterized in that that the step drive (7) of the printing unit carriage (2) drives a gear (7o) which is in a direction of movement of the goods 709846 / ÖUI Erstz-eckenden Zahnsache (I7o) combs and a step; i \ ^r erks drive controls the movement of the gearwheel (? o) in very small steps. 11. The device according to claim 1 and 9 »characterized in that that the eccentrics (6o) assigned to the running rails (11) are made so large that when the eccentric (6o) is rotated in manufacture, the gear (7o) comes into or out of engagement with the rack (17 °), so that the Schritfcwerk (7) is engaged or disengaged. 12. Apparatus according to claim 1 and 5, characterized in that that the step mechanism (7) has a pressure cylinder (71), which has a crosswheel via pawls (271) and ratchet wheel (72) (374-) with Maltese cross (74 ·) moved, with the üewegunpszphnrad on the axis of the Maltese cross (74) (7o) for the printing unit, (2) is arranged. 13 · Device according to claim 1 and 2, characterized in that that instead of the pressure cylinder (71) a geared brake motor (76) for driving a Maltese cross wheel (374 ·) and Mal te serializes (? 4-) is provided. 14. The device according to claim 1 and one of the following claims, characterized in that your Maltese cross wheel (374-) is assigned a pulse counter (75) which is connected to a Computer (G) is connected to control the printing unit (3), ] yy. Device according to Claim 1 and one of the following Claims, characterized in that the printing block (So) works with rams or needles (28o), which are preferably Can be controlled by electromagnets and the like in Parb chambers (180) are arranged, the control magnets of the plungers or needles (26o) are computer controlled. 7Q9846 / QU1 - ** - Μ- 262041? lc. Device according to .ansprach. 1 and one of the ηEchfolsenden Claims, characterized in that the printing block (co) at its bottom, computer-controlled 3-color spraying Nozzles (4-Sun) test. 1? '· Device according to claim. 1 and one of the following Claims, characterized in that the printing block (~: o) bij one, carrier (3-1) hangs axially on the cross member (12o) slidable and lockable in certain sills is. Ii. Device according to claim 1 and 17 »characterized in that düß the l'räger (8l) through roller guides on the crossmember (I2o) is stored. 19 · Device according to claim 1 and 17, characterized in that that the üräger (Cl) has a motor-driven threaded spindle (2c) is mounted axially displaceably on the carrier (2o), whereby .Arretierungsmittel (33, 163, 283, B4-) for the locking of the printing unit (S) are provided on the cross member (12o). 2o. Device according to claims 1 and 19, characterized in that that magnets (253) are provided as locking means. ο Device according to Claims 1 and 19, characterized in that that a hurry cylinder (£ 3) is provided for the locking means is, whose mandrel-like piston rod (133) in Ar re ti oning ε-rings (GA) engages, which in turn is attached to the cross member (I2o) are. 22. The device according to claim 1 and one of the following Claims, characterized in that the carrier (31) is connected to a part (121) having a Huttergexvinde is floating between springs (261) and abutments 709848/0441 BAD ORiG | _NAL - € 2620A17 (3; i.i) the ira ^ er (oil) ivilt in unysi'ahrer position. 23 Vorrici: cur. _, according to claim 1 and one of the following jiiasjjL'üciiö, aasst, ^ ekennäeica-net, that am irä ^ er (--I) jirmsciialter (o2) are attached with i <ocicer: (ic2) .V) S Viertrü ^ e ^ s (12o) together, whereby the .cindsoiitei ('"- ^) aiii' a drive motor (121.) of the üewindespinά al (2 -;) einvi iric-3η. 24. Vorricntirn ^ according to claim 1 and onein dar η & οηΓοΙ jondec claims, ä ^ u.urcli characterized that on the 3oibenscliildon (2o) cos iJruckviex-iwSvJa. ^ Ens (2) Bno.sch.alter (^ 5) voi '^ iseheij, the elekürioch old aj ;. ^ .nvrlG ^(12;) of the threaded spindle (. 2j) üina connected. 2>. Voi'-ciciiOan ^ · ns eh. Claim 1 and one of the following Claims, dadurcYes, that the printing unit (;.) zv; eiteilii5 from ^ eoilaet is, the printing block (ao) no needles or nozzles (2co bav /. 4So) via a Tra ^ erüsü (94, 95) on rotatably arranged axes (191) rests, which force a vertical movement of the unit, during the üräger (81) on the cross member (I2o) dormant, r'ib iiihrun ^ en (431) the up and down unit encompasses. 26. The device according to claim 1 and one of the following Claims, characterized in that as a step mechanism a 3astrad (77) with anchor pendulum (177) and associated Magnet (277) is provided. 27 · Device according to claim 1 and one of the following Claims, characterized in that the printing unit carriage is in the machine frame with an associated computer device (2) with a step mechanism (7)? a lifting device (6), a Sückholeinrichtung (21) and a Moving device for the Druckxijerk (3) equipped is, whereby the goods transport facility with a step drive (>) is provided. .., -, 709846/0441 Bad original 28. Printing block and printing unit carriage drive for one device according to claims 1 and 27, characterized in that the printing unit carriage (2) with printing block (8o) in very small steps is advanced in the direction of movement of the goods and transported back in large steps, after which the printing block (8o) laterally is offset to the direction of movement of the goods in the printing unit carriage (2). 29 printing block and printing unit carriage drive according to claim 28, characterized in that, after repeated lateral offset to the direction of movement of the goods, the printing block (80) in the printing unit carriage (2) is withdrawn in one go from one side of the web to the other. 3o. Printing block and printing unit carriage drive according to claim 28, characterized in that the printing unit carriage (2) with the printing block (80) in very small steps in the direction of movement of the goods vatransportiert and is transported back in large step, after which each of the printing block (80) to the side Direction of movement of goods in the printing unit carriage is offset, with both to one side of the web and when the printing block (80) is returned, the lateral offset in relation to the The direction of movement of the goods is carried out in the width of the printing block (80). 31 · Printing block and printing unit carriage for one device according to Claims 1 and 27, characterized in that the printing block (80) in very small steps transversely to the direction of movement of the goods is transported and the printing unit carriage (2) is advanced in large steps in the direction of movement of the goods, after which the printing block (80) is moved back to its starting position on the printing unit carriage (2) in very small steps, after which the printing unit carriage (2) is transported forward again. 709846/0441 32. Printing block and printing unit drive and goods train drive for a device according to claim 1 and one of claims 27 to 31 j, characterized in that after driving over the Printing unit carriage (2) with printing block (8ο.) Across the entire width the material web a step-by-step advance transport of the material web took place 7098A6 / OAA1